Frost shield



April 8, 1930.

E. T. NORBECK FROST SHIELD Filed March 9, 1928 EMU T. Nor bck PatentedApr. 8, 1930 UNITED STATES A EMIL NORBECK, OF MINNEAPOLIS, MINNESOTAFROST SHIELD Application filed March 9,

My invention relates to frost shields and has for its object to providea. transparent member with a frame portion integrally connected to saidmember.

Another object of the invention resides in forming said frame with anoffset portion having a plane surface substantially parallel to the bodyof said transparent member andwith an outwardly flaring portionconnected to said oflset portion and in permanently attaching'to saidoutwardly flaring portion a. flexible contact strip adapted I toyieldably and freely contact with the surface on which the frost shieldis to be applied.

Another object of the invention resides in depressing the corners of thetransparent member to the level of the offset planiform portion andof-attaching suction cups to the corners of said member. said suctioncups be ing disposed within the outwardly flaring portion of said frameand having the surface thereof disposed substantially in continuitywiththe edge of said outwardly flaring portion.

attaching said contact strip jointly to said outwardly flaring portionand to said suction cups, the edge of said contact strip coinciding withthe edge of said suction cups and extending outwardly beyond the edge ofsaid contact strip.

tion thereof and are in the claims. V

In the drawing illustrating my invention in one form:

Fig. 1 is a rear elevational view of my invention detached from thesurface to which it is to be applied. a Fig. 2 is a. longitudinalsectional view taken on line 22 of Fig. 1.

Fig. 3 is an enlarged fragmentary sectional view taken on line 3-3 ofFig.1, showing the frost shield attached to the surface of a paneof'glass.

Fig. 4 is a view similar to Fig. 3 taken on line 44 of Fig. 1.

In the use of the frost shield, for automobile wind shields it isdesirable to have a particularly pointed out Another object of theinvention resides in 1923. Serial No. 260,417.

relatively light construction which will not readily shake loose whenapplied'to the wind shield and which will form a continuous contactthrough its extent so as to provide a perfect dead air space and preventthe frosting of the Wind shield when the temperature becomessuflicientlylowered. It is further desirable to construct thefrostshield in such a manner that the same is notr'eadilybroken and inthe event that the device isroughly handled so that the same will notbecome permanently injured. 'My invention provides a structure wherebyall of these benefits are secured as will become apparent from thefollowing description: p

The invention proper, which is best shown in Figs. land 2, comprises asheet of celluloid 10 which isarranged with a body portion 11 of propersize and shape and which forms the window through which vision is had.In the instantcase I have illustrated the por-. tion 11 as beingsubstantially rectangular in form though it can readily be comprehendedthatany size or shape'of'the device may be employed. The frame of thedevice which is indicated in its entirety at 19 is" formed by subjectingthe celluloid to pressure in suitable dies under heat. Along themarginal portion of the sheet 10 the same is pressed to provide anoffset planiform strip or portion j s 12 which is parallel to the bodyportion 11 The full objects and advantagesof my invention will appear inthe detailed descripand extends completely around the same. Inadditionthe extreme marginal portion of the sheet lOis pressed to forman outwardly flaring portion 14 which extends away from the bodyportion' 11 and forms a space bej tween the extreme edge 15 of thedevice of the body portion proper. When applied to a wind shieldor otherwindow on which the device is to be used the body portion 11' serves'asa storm window orauxiliary transparent member through which clear visionmay be, had while the planiform portion 12 and the outwardly flaringportion 14 form a frame structure integrally connected with theplaniform portion 11 and completely surrounding-the same which Ipreviously stated is designated in its entirety at 19.

At the four corners'of the body portion 11 indicated at 16 the body ofsaid frost shield cupsso that the same maybedisposed .Witl1- in theframe structure 19. previously'referred;

to. It will be noted that the openings 18 are so disposed and thecorners of the outwardly flaring portion 19 fsheet -10-is'soconst-ructed that the same contacts with thesurfaceofl. the suction cups 17,causing the stirfacebfsaid suction cups at their contacting-(portionswith the members 14;, to lie in substani tiall continuity; ttherewith.

For thewpurposeof! effecting a tightvclo- --.;.sure so as tocprovideaiperfect -dead' airrspace "1 between theratranspanent membercl];ian'dcthe mented or otherwise attached; toa .the 1 outer and to thecontactingisurfaces of the various Y cups\l7.;-'- It willbe.notednthatiitheaextreme outer edge 21Zofthis contactstrip coincideswith; the .z-corresp'onding :edge 22; of: the =va- 1 outwardly beyond:the outer .:eclge.23 of the outwardly. flaring portion .14:- of: thedevice proper. Due toithis --construction: the con-.

:the seal. .a-longL-the surface of the J glass? and when the suctioncupssarerpressed in :place t'he'sa1d contact SiZIlPifOIIIIS amontinuaouscontact throughout its extentawithi the surfaceof the glass'to which it:is att'ached -so.that a perfect-=:dead air. space: isprovided.

E Inthe. use of the: invention'itris'i merely ;necessary tomoisten thesuction- 1cups=or, if

desired, to: apply any 1 other suitable liquid. thereto and to merely:-press: the device inplace :upon. the wind: shield. I The tsuction t.cups 17 hold the structurerproperly.attached While the extreme edge 2Lof thelconta ct strip A '20 =formszcontinuous. contact with :the;surface of the windshield upon whicht-h'e device is attached. 1 WVhere;the length -;of 'cthe sfrost shield. is fairly great additional suction'cups 1; may i :be r arranged: intermediate "those 1dis-.- -s posed: atthe corners of.-.the:device: orth'eien the surface-.of-the(glass? onwhich. it is'to' be tirerfra-me 19 imay be slightlycbowedrwtoward aused; *nearithe: center sof the;;sa-Ine;oso:1that when pressure isapplied: to. the: various ;suc-.---

tionclips 17-; contact rmay beheld-throughout 00. I the extentiofthe-sealing strip. 20.,

My-zinventions is highlymadvantageous in athat a simple .andreffecti'vedevice is provided:

whereby olear'vision throngh :theWi-nd shield or-. other -i glass?-;closurres-aof automobiles or Git-.otherastrhqtures. may:berlradqegazrdless of surface on whichthecdevice is attached IJemploy a.contact. strip: 20 which may 2 be con-.. taistructed of.thin-flexibleirubben or. any other suitable material. This. contactstrip; isi ce-1 surface 'of the outwardly: flaring portion: 14

rious suction cups 17' whileithe.same.=extends tact stripz'QO may *be'conveniently sp'liced at any-"of :the suction :cups :withoutwbreakingiin constant motion. The contact strip serves to form an effective sealbetween the transparent member. and the surface of the glass .luponwhichitais to-be-used so that a perfect dead air space is provided. Byattaching the contact strip'jointly to the marginal edge of theframestructure and suction cups the sealing strip may be convenientlyspliced at the suction cups so as to avoid a break in the continuityofthe contacting edge of said contact strip, thereby insuring perfectcontact uthroughoutv'the entire. marginal portion of :Jthe. device:Theframe of the device being inc tegrallyconnectedrwiththetransparentwmember forms a rigid constructionwhichwmaybe bent: or :otherwise distorted without becomeing permanently injur.ed,- rendering the device particularly applicable for. use onmotorzvehicles. Changes in the'specifio formz of myiinventionyas herein'disclosed,:magy beamadewithin the scope of what isfcla'imedwithoutdepartin'g from the spirits of miy invention.

i Having describediimyoinventionyvitwhat I claim as new and ides-ire;tobpr'otectibynlietters Patent is:

y 1-: Afrost shield comprising a transparent celluloid -memberhaving the-marginalvportions thereof bent out of 'the plane' o-f*1the body of-saidmember to' form 'a frame: integral therewith, the edge" of said memberextenoling obliquely outwardly from said framef-and a flexible contact 7strip attached to said ob- 'lique edge and extending-in "the same'direction as said edge. e

v 2. Aifrost shield comprising a transparent member,aframe surroundingsaid transpare'nt member, suction? cupsformed with f flar- "ing walls"arranged along 'thet edge of" said frame, and a resilient contact stripattached jointly to said frame afndtothe flaring'walls of said suctioncups,.saidfcontact.strip serving to form a dead air spacebetweerfthetransparent member and the'surface'to which it is attached. II p 2 I 3.. A frost shield comprising. a transparent member, a framesurrounding said transparent .member-,; said frame .having. anoutwardlyflaringledge, suction cups attached to said frame and havingflaring ivall s'ldisposed in continuity with. said flaring {edge and aflexible contact strip. j ointly. attachedto. said.outwardly.flaringuedgeiof saidnframa and to theflaring walls of saidsuction cups.

4.1 A1 frost-shield comprising a itransparent celluloid memberofasubstantially; rectangular formehavingrthemarginal portion thereofbent out of the planeiofisaidimember to form afra neiintegral withsaidememberiand having a planiforlntportion tand can outwardly flaringportion issuing from said planiform portion, the corners of saidcelluloid member being depressed to the level of said planiform portion,suction cups attached to said celluloid member at said depressed cornersand disposed within said frame with the outwardly flaring portion incontinuity with the edge of said suction cups, and a flexible contactstrip jointly secured to said flaring portion and to the edges of saidsuction cups.

5. A frost shield comprising a transparent celluloid member ofsubstantially rectangular form having the marginal portion thereof bentout of the plane of said member to form a frame integral'with saidmember and having an oflset planiform' portion and an outwardly flaringportion issuing from said planiform portion, the corners of saidcelluloid member being depressed to thelevel of said plane surface,suction cups attached to said celluloid member at said depressed cornersand disposed within said frame with the outwardly flaring portion incontinuity with the edge of said suction cups and a' flexible sealingstrip jointly secured to said flaring portion and to the edges of saidsuction cups, the extreme edge of said flexible contact strip coincidingwith the edge of said suction cups and extending outwardly beyond theedge of said outwardly flaring portion.

6. A frost shield comprising a transparent celluloid member having amarginal portion thereof bent outwardly therefrom in flaring relation,an elastic contact strip permanently secured to said flaring marginalportion and adapted to yieldably and freely contact along an edgethereof with the surface of the member on which the frost shield is tobe applied,

and means for detachably securing said transparent member to the surfaceon which it is applied with said contact strip in contact therewith.

7. A frost shield comprising a transparent EMIL T. NORBECK. 5,,

celluloid member having a marginal portion a thereof bent out of theplane of said member to form an offset planifrom strip parallel to saidtransparent member, and the extreme edge thereof bent outwardly fromsaid planiform strip in oblique relation thereto, and a flexible contactstrip secured to said oblique edge, and means for attachingthe frostshield to a window with the edge of said contact atrip in contact withthe surface of the win- 8. A frost shield comprising a transparentmember, a frame on said member,suction cups attached to said frame, anda flexible contact strip attached to said frame and to said suctioncups, said contact strip being joined at its point of attachment to oneof said suction cups.

9. A frost shield comprising a transparent member, suction cups attachedto said member, a contact strip cemented to said member and to one ofsaid suction cups, said contact

